Revert "feat(ecc): prune plugin 43→12 items, promote 7 rules to .claude/rules/ (#245)"

This reverts commit 1bd68ff534.

.opencode/commands/plan.md

@@ -0,0 +1,49 @@
+---
+description: Create implementation plan with risk assessment
+agent: planner
+subtask: true
+---
+
+# Plan Command
+
+Create a detailed implementation plan for: $ARGUMENTS
+
+## Your Task
+
+1. **Restate Requirements** - Clarify what needs to be built
+2. **Identify Risks** - Surface potential issues, blockers, and dependencies
+3. **Create Step Plan** - Break down implementation into phases
+4. **Wait for Confirmation** - MUST receive user approval before proceeding
+
+## Output Format
+
+### Requirements Restatement
+[Clear, concise restatement of what will be built]
+
+### Implementation Phases
+[Phase 1: Description]
+- Step 1.1
+- Step 1.2
+...
+
+[Phase 2: Description]
+- Step 2.1
+- Step 2.2
+...
+
+### Dependencies
+[List external dependencies, APIs, services needed]
+
+### Risks
+- HIGH: [Critical risks that could block implementation]
+- MEDIUM: [Moderate risks to address]
+- LOW: [Minor concerns]
+
+### Estimated Complexity
+[HIGH/MEDIUM/LOW with time estimates]
+
+**WAITING FOR CONFIRMATION**: Proceed with this plan? (yes/no/modify)
+
+---
+
+**CRITICAL**: Do NOT write any code until the user explicitly confirms with "yes", "proceed", or similar affirmative response.